User`s manual

AT Command Reference Manual
4-20 1048
S82 - Break Handling Options
S82 is for compatibility purposes only, changing this register will not have any affect.
S86 - Call Failure Reason Code
When the modem issues a NO CARRIER result code, a value is written to this S-Register to help determine the reason for
the failed connection. S86 records the first event that contributes to a NO CARRIER message. The cause codes are:
Range: 0, 4, 5, 9, 12, 13, or 14
Default:
S86=0 Normal disconnect, no error occurred.
S86=4 Loss of carrier.
S86=5 V.42 negotiation failed to detect an error-correction modem at the other end.
S86=9 The modems could not find a common protocol.
S86=12 Normal disconnect initiated by the remote modem.
S86=13 Remote modem does not respond after 10 re-transmissions of the same message.
S86=14 Protocol violation.
S91 - PSTN Transmit Attenuation Level
Sets the transmit attenuation level from 0 to 15 dBm for the PSTN mode, resulting in a transmit level from 0 to -15 dBm, In
some countries, the transmit level may not be changed and there are checks to prevent transmit attenuation level change
using ConfigurACE.
Range: 0 to 15 dBm (Corresponding to 0 to -15 dBm transmit level.)
Default: 10 (-10 dBm transmit level.)
S92 - Fax Transmit Attenuation Level
Sets the transmit attenuation level from 0 to 15 dBm for the fax mode, resulting in a transmit level from 0 to -15 dBm. In
some countries, the transmit level may not be changed and there are checks to prevent transmit attenuation level change
using ConfigurACE.
Range: 0 to 15 dBm (Corresponding to 0 to -15 dBm transmit level.)
Default: 10 (-10 dBm transmit level.)